"Through the Looking Glass" is a classic children's novel by Lewis Carroll, first published in 1871. The story is a sequel to "Alice's Adventures in Wonderland" and follows the adventures of Alice as she steps through a mirror into a fantastical alternate world. In this world, she encounters a chess game come to life, with living chess pieces and a Red Queen who is determined to capture Alice. As she travels through this world, Alice meets a variety of strange characters, including Tweedledum and Tweedledee, Humpty Dumpty, and the White Knight. Along the way, she must use her wits and problem-solving skills to navigate the challenges and puzzles that she faces. The novel explores themes of identity, perception, and the nature of reality through its whimsical and surreal plot.